Computer Science CS 101 Chapter 6 Quiz
29 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the definition of a keyboard?

An input device containing keys arranged in a typewriter configuration, used to input letters, numbers, and other symbols.

What are the four main types of keys found on a keyboard?

  • Standard alphanumeric keys, numeric keypad, backspace keys, insert keys
  • Standard alphanumeric keys, arrow keys, function keys, delete keys
  • Standard alphanumeric keys, numeric keypad, function keys, directional keys and special keys (correct)
  • Standard alphanumeric keys, function keys, numeric keypad, delete keys
  • What is the definition of a pointing device?

    An input device that moves an onscreen pointer (arrow or insertion point) to allow the user to select objects on the screen.

    Which of the following are common types of pointing devices?

    <p>Mouse, electronic pen, touch screen</p> Signup and view all the answers

    What is the definition of a mouse?

    <p>An input device used to manipulate graphical objects and controls onscreen.</p> Signup and view all the answers

    What is the definition of a trackpad?

    <p>A touch-sensitive surface on which you can slide your fingers to move the onscreen pointer.</p> Signup and view all the answers

    What is the definition of a scanner?

    <p>A device that optically scans images, printed text, handwriting, or an object, and converts it to a digital image.</p> Signup and view all the answers

    What is the definition of a game controller?

    <p>A device used with games or entertainment systems to provide input to a video game, typically to control an object or character in the game.</p> Signup and view all the answers

    What is the definition of a barcode reader?

    <p>An input device that reads barcodes.</p> Signup and view all the answers

    What is the definition of a barcode?

    <p>A machine-readable code that represents data as a set of bars.</p> Signup and view all the answers

    What is the definition of an RFID reader?

    <p>A device used to read data stored on RFID tags.</p> Signup and view all the answers

    What is the definition of an optical mark reader?

    <p>A device that reads data from special forms, used for scoring exams, tallying votes, questionnaires, and other applications.</p> Signup and view all the answers

    What is the definition of an optical character recognition device?

    <p>A device that reads optical characters designed to be identifiable by both humans and machines.</p> Signup and view all the answers

    What is the definition of a magnetic ink character recognition reader?

    <p>A device that reads magnetic ink characters.</p> Signup and view all the answers

    What is the definition of a biometric reader?

    <p>A device that reads biometric data, which is based on unique physiological characteristics or personal traits.</p> Signup and view all the answers

    What is the definition of a digital camera?

    <p>An input device that takes pictures and records them as digital data instead of film or videotaped images.</p> Signup and view all the answers

    What are the two common types of digital cameras?

    <p>Still cameras and video cameras</p> Signup and view all the answers

    What is the definition of a computer monitor?

    <p>An output device that presents information from the CPU on the screen, acting as an interface between the CPU and the user.</p> Signup and view all the answers

    What are the main digital display technologies used in computer monitors?

    <p>CRT, LCD, Plasma, LED, and OLED</p> Signup and view all the answers

    What is the definition of screen resolution?

    <p>The number of horizontal and vertical pixels that a device displays on the screen.</p> Signup and view all the answers

    What are two common aspect ratios often used in computer monitors?

    <p>4:3 and 16:9</p> Signup and view all the answers

    What are the two main categories of printing technologies?

    <p>Impact and nonimpact</p> Signup and view all the answers

    What is the definition of print speed?

    <p>The rate at which a printer produces output, typically measured in pages per minute (ppm).</p> Signup and view all the answers

    What is the definition of a dot-matrix printer?

    <p>An older type of printer that relies on an ink-soaked ribbon and a series of pins to strike the paper and form characters.</p> Signup and view all the answers

    What is the definition of an inkjet printer?

    <p>A printer that uses a print head to spray tiny drops of ink onto the paper, forming images and characters.</p> Signup and view all the answers

    What is the definition of a laser printer?

    <p>A printer that uses a laser beam to charge an image onto a drum, attracting toner particles that are then transferred to the paper.</p> Signup and view all the answers

    What is the definition of a multifunction device (MFD)?

    <p>A printer that combines multiple functionalities, such as printing, scanning, copying, and faxing, in a single unit.</p> Signup and view all the answers

    What is the definition of a touch screen?

    <p>A display device that allows the user to interact with the screen by touching it directly using their fingers.</p> Signup and view all the answers

    What is the definition of a data bus?

    <p>A set of circuits within a computer that allows data to travel between different components, enabling communication and data transfer between the processor, memory, and peripheral devices.</p> Signup and view all the answers

    Study Notes

    Course Information

    • Course title: Introduction to Computer Science
    • Course code: CS 101
    • Professor: Mahmoud Gadallah and Mohamed Elnabawy
    • Lab/Tutorial Coordinator: Instructor Teams
    • Contact: LMS-MOODLE and WhatsApp: 01005586337, [email protected]
    • Course rules: grades, late homework, and attendance

    Chapter 6: Input and Output

    • Computers receive input, process information, and produce output.
    • Input devices receive data, processor (CPU) processes information, and output devices deliver results.

    Key Input Devices

    • Keyboard: used to input letters, numbers, and symbols.

      • Standard alphanumeric keys
      • Numeric keypad
      • Function keys
      • Directional keys and special keys
      • Can be wireless, portable or foldable
      • Some handheld PCs and mobile devices have a built-in keyboard or a thumb pad.
    • Pointing devices: move an onscreen pointer to select objects (or perform other actions).

      • Mouse: common pointing device.
        • Rests on flat surface
        • Older mechanical mice have a ball
        • Most modern mice are optical
        • Can be wireless
        • Common mouse operations: click, right-click, double click, drag-and-drop, scroll wheel/button
      • Electronic pen: used for drawing or writing on a screen (often on pen-based PCs)
      • Function similar to a mouse but can also be used to draw and write
      • Touch screen: input device that is touched with the finger to issue commands or otherwise generate input to connected computer.
    • Scanner: optically scans images, text, handwriting , or objects, and converts them to a digital image; used in source data automation.

      • Types of scanners: flatbed, sheet-fed, handheld, drum, three-dimensional
      • Quality measured in dots per inch (dpi), higher resolution images are sharper.
    • Readers (Different types): devices that read barcodes, machine-readable codes represented as bars

      • Barcode readers: read barcodes.
      • Common types: Universal Product Code (UPC), Code 39, POSTNET Code, RFID: technology for storing and transmitting data.
      • RFID tags contain tiny chips and antennas; used for tracking inventory, livestock, or other large assets.
      • Optical mark readers (OMRs): input data from special forms, used for exams, polls, questionnaires.
      • Optical character recognition (OCR): read optical characters, especially suited for turnaround documents (e.g., monthly bills).
      • Magnetic ink character recognition (MICR) readers: read special magnetic characters, primarily used for processing checks.
    • Biometric readers: use unique physical characteristics (fingerprint, face, iris recognition, voice and signature) for security and access control.

    • They often combine with other hardware devices such as keyboards or mice. They are increasingly popular for access control in computers and other storage devices.

    • Digital camera: take and records pictures and videos

    • Audio input: entering audio data into the computer (voice and music)

      • Voice input systems: enable computers to recognize human voice (e.g., microphone or headset software combination).
      • Music systems can input music.
    • Other input devices: web camera, bar code reader, microphone, digital camera, light pen.

    Output Devices: Display

    • Display device that presents information from the CPU.
      • Common types: CRT, LCD, Plasma, LED, OLED.
      • Screen resolution: number of horizontal and vertical pixels.
      • Aspect ratio: width-to-height ratio commonly 4:3(traditional) or 16:9(widescreen).
      • Various resolutions, such as VGA (640x480), SVGA (800x600), XGA (1024x768).

    Output Devices: Printers

    • Printer: output device that produces hard copy output.

      • Types: impact printers (such as dot-matrix printers – often still used) and non-impact printers (such as inkjet or laser printers).
    • Print resolution (dpi): measurement of quality. Higher (more dots per inch) better quality.

    • Print speed (ppm): measured in pages per minute shows how fast they print. Common speeds vary widely.

    • Some printers are now multi-function (or all-in-ones) encompassing capabilities such as copying, scanning, faxing and/or printing.

    • Other output devices: speakers, headphones, plotters

    Installing Peripheral Devices

    • Peripheral devices connect to the computer.
    • Data transmission: Data flows between the device and computer over a circuit called a data bus.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    Description

    Test your knowledge on Chapter 6 of Introduction to Computer Science. This chapter focuses on the concepts of input and output, as well as the key input devices like keyboards and pointing devices. Understand how computers process information and produce outputs effectively.

    More Like This

    Use Quizgecko on...
    Browser
    Browser